Adapting to Change: Climate Impacts on Asia's Endangered Fish Populations

Nur Syuhada Iskandar, Noorashikin Md Noor, Zaidi Che Cob, Simon Kumar Das

Abstract


Climate change has emerged as a critical factor influencing the survival and distribution of endangered fish species in Asia. This review examines the multifaceted impacts of climate change on these vulnerable aquatic populations especially fish. Rising temperatures, altered precipitation patterns, and increasing frequency of extreme weather events are reshaping freshwater ecosystems, leading to habitat loss, changes in water quality, and altered species interactions. Specifically, thermal stress from elevated water temperatures can exceed the tolerance limits of many endangered fish species, resulting in reduced fitness, altered reproductive cycles, and increased mortality rates. Changes in precipitation and runoff patterns can further exacerbate habitat degradation, leading to reduced river flows and the desiccation of critical spawning and nursery habitats. In addition to direct physiological stress, climate change amplifies existing threats such as pollution, overfishing, and habitat fragmentation. The synergistic effects of these stressors can drive population declines and increase the risk of local extinctions. The resilience of endangered fish species in Asia hinges on adaptive management strategies that incorporate climate change projections. Conservation efforts must prioritize habitat restoration, the creation of climate refugia, and the implementation of sustainable fishing practices. Additionally, integrating local and traditional knowledge with scientific research can enhance the effectiveness of conservation initiatives. Policymakers and stakeholders must collaborate to mitigate the impacts of climate change, ensuring the preservation of Asia's rich aquatic biodiversity for future generations. This review also underscores the urgent need for comprehensive research and proactive conservation measures to safeguard endangered fish species in the face of a changing climate.


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References


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